The MB-326K was a dedicated ground-attack variant of the MB-326 jet trainer. Originally designed at the request of the South African Air Force in 1966, the MB-326K featured substantial improvements in firepower and payload, chiefly replacing the 7.62 mm guns with 30 mm DEFA 553 autocannons, as well as provisions for additional gun pods and bombs. In total, at least 93 MB-326Ks were built, including 73 licence-built Impala Mk. IIs for the SAAF.

Introduced in Update 2.51 "Spearhead", the MB-326K is a specialised ground-attack aircraft with a versatile loadout, including bombs, rockets, and napalm to tackle various targets. Its firepower is not to be underestimated; with a pair of built-in 30 mm autocannons and the option to mount additional 30 mm gun pods or up to six miniguns, the MB-326K can prove deadly against any aircraft. However, despite the MB-326K’s impressive flight performance, carrying a heavy payload significantly weighs the plane down. This often leaves it lagging behind even most WWII jet aircraft in terms of speed and manoeuvrability.